In later life Farley was to produce the first printed edition of Domesday Book, which was then much in demand. Following a Parliamentary order in 1767, Farley was appointed co-editor of the Domesday printing project in 1770, alongside Dr Charles Morton (1716-99), of the British Museum.
In his Literary Anecdotes of the eighteenth century the printer John Nichols remarked that Morton and Farley’s relationship was characterised by rivalry and mistrust. Farley, whom Nichols called “of all men the properest person for so important a trust” due to his “long and intimate acquaintance with the original record” , evidently considered himself best fitted to produce the landmark work. Farley eventually cut Morton out altogether, pressing ahead with the work with Nichols’ co-operation. Farley received payment to the tune of £2,500 for his services.
Although it seems that he was not otherwise active on the antiquarian scene, Farley’s crucial role in producing the first complete printed edition of Domesday Book is enough to secure his place in history.